<template>
    <el-container class="home-container">
        <!-- 头部区 -->
       <el-header>
           <div class="header">
               <img src="../assets/logo1.jpg" alt="">
               <span class="header-span">电商后台管理系统</span>
           </div>
            <el-button type="primary" @click="logout">退出</el-button>
       </el-header>
       <!-- 主题区 -->
    <el-container>
        <!-- 侧边栏 -->
       <el-aside :width="isCollapse?'64px':'200px'">
           <!-- 侧边栏菜单区 -->
           <div class="toggle-button" @click="toggleCollapse">|||</div>
       <el-menu
         background-color="#4fb4e8"
         text-color="#fff"
         active-text-color="#ffd04b"
         :default-active="activePath"
         :unique-opened="true"
         :collapse="isCollapse"
         :collapse-transition="false"
         :router ="true"
        >
         <!-- 一级菜单 -->
      <el-submenu :index="item.id+''"  v-for="item in menulist" :key="item.id">
        <!-- 一级菜单模板区 -->
        <template slot="title">
        <!-- 图标 -->
          <i :class="iconsObj[item.id]" style="color:#0a7cd2;"></i>
        <!-- 文本 -->
          <span>{{item.authName}}</span>
        </template>
        <!-- 二级菜单 -->
        <el-menu-item :index="'/'+subitem.path"
         v-for="subitem in item.children" :key="subitem.id"
         @click="saveNavState('/'+subitem.path)">
             <template slot="title">
        <!-- 图标 -->
          <i class="el-icon-menu" style="color:#0a7cd2;"></i>
        <!-- 文本 -->
          <span>{{subitem.authName}}</span>
        </template>
        </el-menu-item>
      </el-submenu>
    </el-menu>
       </el-aside>
       <!-- 主体区 -->
       <el-main>
           <router-view></router-view>
       </el-main>
    </el-container>
    </el-container>
   
</template>
<script>
export default {
    data(){
        return{
            menulist:[],
            iconsObj:{
              '125': 'iconfont icon-user',
              '103': 'iconfont icon-tijikongjian',
              '101': 'iconfont icon-shangpin',
              '102': 'iconfont icon-danju',
              '145': 'iconfont icon-baobiao'
            },
            // 是否折叠
            isCollapse:false,
            // 被激活连接地址
            activePath:''
        }
    },
   created(){
       this.getMenuList(),
       this.activePath = window.sessionStorage.getItem('activePath')
    },
   methods:{
       // 退出
       logout(){
           window.sessionStorage.clear();
           this.$router.push('/login')
       },
       // 请求数据
       async  getMenuList(){
       const {data: res}  = await this.$http.get('menus')
       if(res.meta.status!==200) return this.$message.err(res.meta.msg);
       console.log(res);
       this.menulist = res.data
       },
       // 点击按钮折叠
       toggleCollapse(){
            this.isCollapse = !this.isCollapse;
       },
       // 保存连接的激活状态
       saveNavState(activePath){
           window.sessionStorage.setItem('activePath',activePath);
           this.activePath =activePath;
       }
   }
}
</script>
<style scoped>
.home-container{
    height: 100%;
}
.el-header {
  background-color: #0a7cd2;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  color: #fff;
  font-size: 22px;
}
.el-aside{
  background-color: #4fb4e8;
}
.el-main{
  background-color: #EAEDF1;
}
.header{
    display:flex;
}
.header img{
    width:50px;
    height: 50px;
    display:inline-block;
    margin-left:20px;
}
.header-span{
    margin-top:20px;
    margin-left:20px;
    align-items: center;
}
.iconfont{
    margin-right:10px;
}
.el-menu{
    border-right: 0;
}
.toggle-button{
    background-color:#2d92ca;
    color:#fff;
    font-size: 10px;
    line-height: 24px;
    text-align: center;
    letter-spacing: 0.2em;
    cursor: pointer;
}
</style>